Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5J9000 found under Pin Assembly by Caterpillar Inc. The National Stock Number assigned to this part is 2590011235943, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5J9000.